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Martensitic transformation behavior of FeMnGe alloys

Published online by Cambridge University Press:  31 January 2011

Xing Lu ,
Zuoxiang Qin ,
Yansheng Zhang ,
Bingzhe Ding  and
Zhuangqi Hu
Xing Lu
Affiliation:
Department of Materials Science and Engineering, Dalian Railway Institute, Dalian 116028, and State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shengyang 110015, People's Republic of China
Zuoxiang Qin
Affiliation:
Department of Materials Science and Engineering, Dalian Railway Institute, Dalian 116028, People's Republic of China
Yansheng Zhang
Affiliation:
Department of Materials Science and Engineering, Dalian Railway Institute, Dalian 116028, People's Republic of China
Bingzhe Ding
Affiliation:
State Key Laboratory for Rapidly Solidified Nonequilibrium Alloys, Institute of Metal Research, Chinese Academy of Sciences, Shengyang 110015, People's Republic of China
Zhuangqi Hu
Affiliation:
State Key Laboratory for Rapidly Solidified Nonequilibrium Alloys, Institute of Metal Research, Chinese Academy of Sciences, Shengyang 110015, People's Republic of China
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Abstract

The martensitic transformation behavior of FeMnGe alloy (0–6 wt% Ge) was investigated by resistivity and dilation methods. Ge depresses the martensitic transformation of FeMn alloy. The effect of Ge on starting temperature of martensitic transformation (Ms) temperature of FeMn alloy is −12 K/wt% Ge. Comparing Ge (4s24p2) with Si (3s23p2) and Al (3S23P1), which have similar outer shells of electrons, we found that their effects on the Ms of FeMn alloy are completely different. The result suggests that the outer shell of electron is not the main factor governing the Ms temperature of FeMn alloy, although it is essential in the alloy's antiferromagnetic transition.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 2 , February 2000 , pp. 329 - 331
Copyright
Copyright © Materials Research Society 2000

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References

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